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在Firefox里同事设置宽和高可以改变checkbox和radio的大小，除此之外，在chrome等浏览器里对他们设置宽高是不起作用的。</p><p>本文给出了两种自定义checkboxhe和radio样式的方法：</p><h2 id="方法一：appearance-after"><a href="#方法一：appearance-after" aria-hidden="true" class="header-anchor">#</a> 方法一：appearance + :after</h2><p>该方法的主要思路是：首先利用appearance属性清除radio或checkbox的原生样式，然后在此基础添加上一些自定义的样式和动画效果，以达到自定义样式的目的。
用到了:after伪元素生成控件内部的选中样式。</p><pre class="language-css"><code><span class="token selector">input[type=&quot;radio&quot;],
input[type=&quot;checkbox&quot;]</span> <span class="token punctuation">{</span>
	<span class="token property">appearance</span><span class="token punctuation">:</span> none<span class="token punctuation">;</span>
<span class="token punctuation">}</span>
</code></pre><p>直接看demo：</p><iframe height="422" scrolling="no" title="styled switch" src="//codepen.io/_tianxia/embed/deQBXv/?height=422&theme-id=dark&default-tab=css,result&embed-version=2" frameborder="no" allowtransparency="true" allowfullscreen="allowfullscreen" style="width: 100%;">See the Pen <a href="https://codepen.io/_tianxia/pen/deQBXv/">styled switch</a> by tianxia (<a href="https://codepen.io/_tianxia">@_tianxia</a>) on <a href="https://codepen.io">CodePen</a>.</iframe><p>demo截图：</p><p><img src="http://pn4meizzc.bkt.clouddn.com/blogswitch001.gif" alt="demo"></p><h2 id="方法二：opacity-0-display-none-额外标签"><a href="#方法二：opacity-0-display-none-额外标签" aria-hidden="true" class="header-anchor">#</a> 方法二：opacity: 0(display:none) + 额外标签</h2><p>这个方法是多数UI库使用的方法：首先将checkbox和radio隐藏，然后让相邻它的标签（或label标签）伪装成它，并设置样式，
利用css3的“相邻兄弟选择器”（ + 或  ~ ）,通过checkboxhe和radio的选中切换该元素不同的样式，</p><p>直接看demo：</p><iframe height="302" scrolling="no" title="styled switch 2" src="//codepen.io/_tianxia/embed/jxdKKL/?height=302&theme-id=dark&default-tab=css,result&embed-version=2" frameborder="no" allowtransparency="true" allowfullscreen="allowfullscreen" style="width: 100%;">See the Pen <a href="https://codepen.io/_tianxia/pen/jxdKKL/">styled switch 2</a> by tianxia (<a href="https://codepen.io/_tianxia">@_tianxia</a>) on <a href="https://codepen.io">CodePen</a>.</iframe>
时间仓促做的有点粗糙，只能简单地用绿色圆点和方点示意选中状态了。
<h2 id="对比一下"><a href="#对比一下" aria-hidden="true" class="header-anchor">#</a> 对比一下</h2><ul><li>方法一改变原控件的样式，只针对该控件做样式修改； 方法二相当于把原控件隐藏，添加其他标签代替了它</li><li>方法一比较简单，但应用场景单一，只能用于这种表单填写的场景；方法二较复杂，需要更多的标签支持，
但该方法<strong>应用场景更灵活</strong>，可用来实现tab页切换等效果，见另一篇<a href="/blog/vuepress/css/use_of_checkbox.html">checkbox的应用</a></li><li>两个缺点都是兼容性不好，只支持高版本浏览器，方法一的appearance在用时还需要加上浏览器前缀</li><li>等等</li></ul><p>有说的不对的地方，望重拍指正。</p></div><div class="wx-wrapper" data-v-0de8a4bf><p class="wx-txt" data-v-0de8a4bf>欢迎关注</p><img src="http://pn4meizzc.bkt.clouddn.com/wxqr.png" class="wx-img" data-v-0de8a4bf></div><div class="beg-wrapper" data-v-1f1af99c><a href="javascript:;" class="btn show" data-v-1f1af99c><img src="http://pn4meizzc.bkt.clouddn.com/blogshang_log.png" data-v-1f1af99c></a><p class="shang-txt" data-v-1f1af99c>赏不赏，看您心情</p><img src="http://pn4meizzc.bkt.clouddn.com/blogWechatIMG35.jpeg" class="shangImg" data-v-1f1af99c></div><!----><div class="content page-nav"><p class="inner"><span class="prev">
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